Web-holder for rib-knitting machines.



. R. W. SCOTT. WEB HGLDER FOB. RIB KNITTING MACHINES.

APPLICATION FILED IULYB, 1906.

Patented .UNITED sTATEs PATENT OFFICE.

ROBERT W. SCOTT, OF LEEDS POINT, NEW JERSEY, ASSIGNOR OF ONE-HALF TOLOUIS N. D.

. WILLIAMS, OF OGONTZ, PENNSYLVANIA.

WEB-HOLDER FOR RIB-KNITTING MACHINES.

Specification of Letters Patent.

Patented Oct. 20, 1908.

Appleman med .my s, 1906. seria No. 324,615.

To all whom it 'may concern.'

Be it known that I, ROBERT W. SCOTT, a citizen ofthe United States,residing in Leeds Point, Atlantic county, New Jersey, have inventedcertain Improvements in Web-Holders for Rib-Knitting Machines, of whichthe following is av specification.

The object of my invention is to provide a rib knitting machine with webholders of such character that the "knocking over of the stitches on theribbing needles can be effected without the use of weights, draft rollsor like devices for impartin tension to the knitted web. This objectatt-ain inl the manner hereinafter set forth, reference being had to theaccompanying drawings, in

which p Figure 1 is a vertical sectional View of sufiicient of a ribknitting machine to illustrate my invention; Figs. 2 and 2 a are planviews of` part of the same, Fig. 3 is a view similar to ig. 1, butillustrating another embodiment of my invention and Figs. 4, 5 and 6 areviews of the web holders employed.

In the drawing, 1 represents the needle cylinder of the machine, 2 aneedle dial, 43, 3a the cylinder needles and 4 vthe dial needles, whichmay be operated in order to knit, b any suitablearrangement of cams in acylrinde cam box and dial cam ring.

` The needle cylinder and dial may be the rotative members of themachine, and may operate in connection with a stationary cylindercanrbox and dial cam ring, or the reverse of this arrangement may beadopted, the cam box and the cam ring being the rotative members and thecylinder and d-ial being stationary. 1

A set of reciprocating sinkers and web holders 5 operates in conjunctionwith the cylinder needles in the same manner as in previous machines ofthis class, butin the present machine I employ also a supplementary setof web holders 6, which operates in conjunction with the dial needlesand by imparting tension 'to the sinker Wales of a course in advance ofthat which is bein drawn by the dial needles causes the knoc ing over ofthe stitches u on said dial needles without the necessity ofpweightingorotherwise imparting tension to the knitted web in the usual way.

. The web holders 6 have stems or shanks 7 which are vertically guidedin a cylinder 8 below the dial, reciprocating movement being imparted-tothe web holders 6 by means of a cam ring 9 which surrounds the cylinder8 holders 6 for effecting this result..

Durin the production of ribbed web the -web hol ers Galone aresufficient for the performance of the desired holding of the web, andthe web holders 5 may, at such time, be rendered inoperative by properadjustment of their actuatin cams, but in a machine such as that Whic Ihave illustrated, which is intended for the production of either ribbedor lain web and has normally inactive cylin er needlesl 3a in line withthe dial needles, the use ofthe web holders 5 is necessary in order toeffect the desired retention of the web during the knitting of plainfabric when the cylinder needles only are in operation, and at such timethe supplementary web holders 6 may be rendered inoperative, if desired,by proper adjustment of their operating cams.

In that embodiment of my invent-ion shown in Fig. 3 substantially thesame construction is adopted, the only difference being that the webholders 6 are guided in grooves inan inverted conical bed 11, and areacted upon by a correspondingly shaped cam ring 12.

The web holders 6 act upon the sinker wales of a course of stitches inadvance of that which is being drawn by the dial needles', being iirstraised and then depressed to engage said sinker wales at a point inadvance of that at which the new stitches are drawn by the dial needles,thc 'new sinker wales passing over the tops of said web holders 6.

When the web'holders 6, are intended to engage single sinker wales,their hooked ends may be bent laterally, as shown in Fig. 2, but wheneach web holder 6 is intended to engage two sinker wales, its hooked endis forked, as shown in Fig. 2a.

While I have shown my invention in connection with a circular knittingmachine having cylinder and dial, and have selected a ICO pose ofillustrating my invention, it wi be evident that it is a plicable tocircular rib knitting machines o other types, or to 'ma-v chines havingstraight needle beds.

I claim z- 1. A rib knitting machine having two sets of web holders, oneset 0 erating in conjunction with the'needles o one needle carrier, andthe other set operating in conjunction with the needles of the otherneedle carrier.

2. A rib knitting machine having two sets of web holders, one set oerating in conjunction with the needles o one needle carrier,

, and the other set operating in conjunction with the needles of theother needle carrier, and having movement in a direction transverse tothe direction' of movement of said needles. v

3.- A rib knitting machine having two 'sets of web holders, one set oerating in conjuncand the .other set operating in conjunction with theneedles of the other needle carrier to engage the sinker wales of acourse of stitches drawn by the said needles.

In testimony whereof7 I have signed my name to this specification, inthe presence of two subscribing witnesses.

ROBERT W.SCOTT.

Witnesses: l HAMILTON D. TURNER, KATE A. BEADLE.

ltion with the needles o one-needle carrier,

in advance of that whose stitches are being

